Question

tính bằng cách thuận tiện nhất 101 x 2,022 - 2,022

Answer 1

\(101\times2,022-2,022\\ =\left(101-1\right)\times2,022\\ =100\times2,022\\ =202,2\)

Answer 2

\(101\times2,022-2,022\)

\(=2,022\)\(\times\left(101-1\right)\)

\(=2,022\times100\)

\(=202,2\)

Answer 3

\(101\times2,022-2,022\)
\(=101\times2,022-2,022\times1\)
\(=\left(101-1\right)\times2,022\)
\(=100\times2,022\)
\(=202,2\)

Answer 4

\(101\cdot2,022-2,022\)

\(=\left(101-1\right)\cdot2,022\)

\(=100\cdot2,022\)

\(=202,2\)